Bills hire Jeff Hafley as defensive assistant - NBC Sports

Hafley spent the past two seasons with the Tampa Bay Buccaneers, and coached the team's safeties last year. He previously had 11 years of experience as a college assistant, including stints at Pittsburgh and Rutgers.

Also on Thursday, the Bills signed five players to reserve/future contracts, including former New York Giants receiver Ramses Barden. A 2009 third-round draft pick, Barden had 29 catches for 394 yards in 29 games for New York.